hash¶
This module provides facilities for creating varios hashes over data.
Hash objects¶
All objects defined in this module inherit from a HashBase
base class and thus have the same API.
-
class
hash.
HashBase
()¶ Base class for all hash types. Currently the following classes are implemented:
MD5
SHA1
SHA256
SHA512
-
hash.HashBase.hash.HashBase.prototype.
update
(data)¶ Update the hash object with the given data. This function can be called multiple times in order to incrementally update the data being hashed.
Functions¶
-
hash.
createHash
(type)¶ Helper function to create hash objects.
type
must be (a string) one of:- md5
- sha1
- sha256
- sha512
Examples¶
Using the helper function and chaining methods:
hash.createHash('sha1').update('abc').digest('hex');
// "a9993e364706816aba3e25717850c26c9cd0d89d"
Creating objects and calling methods individually:
var h1 = new hash.SHA1();
h1.update('abc');
h1.digest('hex');
// "a9993e364706816aba3e25717850c26c9cd0d89d"